diff --git a/Gemfile.lock b/Gemfile.lock
index cf75eaa..3cd52ba 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -127,6 +127,8 @@ GEM
       racc (~> 1.4)
     nokogiri (1.11.2-x64-mingw32)
       racc (~> 1.4)
+    nokogiri (1.11.2-x86_64-darwin)
+      racc (~> 1.4)
     nokogiri (1.11.2-x86_64-linux)
       racc (~> 1.4)
     public_suffix (4.0.6)
@@ -207,7 +209,7 @@ GEM
     selenium-webdriver (3.142.7)
       childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
-    spring (2.1.1)
+    spring (4.1.1)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)